[FEATURE] Add optional monitoring and alarms stack

[gaiksaya]

Is your feature request related to a problem?

The current set up only deploys cloudwatch logs for opensearch.log files.
See: https://github.com/opensearch-project/opensearch-cluster-cdk/tree/main/lib/cloudwatch

What solution would you like?

We need logging for below aspects as well:

• opensearch-dashboards
• Disk usage metric
• Red cluster
• Master unreachable
• JVM pressure, etc

Along with monitoring/metrics, an option to enable alarms or extend the framework so that alarms can be set externally if and when required.

What alternatives have you considered?

A clear and concise description of any alternative solutions or features you've considered.

Do you have any additional context?

Add any other context or screenshots about the feature request here.